EP 0422502 B1 19971217 - Air intake control system for an internal combustion engine
Title (en)
Air intake control system for an internal combustion engine
Title (de)
Saugluftsteuerungssystem für Brennkraftmaschinen
Title (fr)
Système de commande d'air d'admission pour moteur à combustion interne
Publication
Application
Priority
- JP 26098989 A 19891005
- JP 26564789 A 19891012
Abstract (en)
[origin: EP0422502A1] An internal combustion engine has a plurality of cylinders and intake passages leading to the cylinders respectively. A plurality of intake control valves block and unblock the intake passages respectively. Drive devices open and close the intake control valves mutually-independently. A detecting device serves to detect a predetermined condition of the engine under which a speed of the engine is required to vary. A control device performs a control of closing the intake control valves mutually-independently by use of the drive devices after the detecting device detects the predetermined condition of the engine.
IPC 1-7
IPC 8 full level
F02B 29/08 (2006.01); F02D 9/10 (2006.01); F02D 31/00 (2006.01); F02D 33/02 (2006.01); F02D 41/34 (2006.01)
CPC (source: EP US)
F02B 29/083 (2013.01 - EP US); F02D 9/1065 (2013.01 - EP US); F02D 31/002 (2013.01 - EP US); F02D 33/02 (2013.01 - EP US); F02D 41/345 (2013.01 - EP US); Y02T 10/12 (2013.01 - EP US); Y02T 10/40 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0422502 A1 19910417; EP 0422502 B1 19971217; DE 69031822 D1 19980129; DE 69031822 T2 19980514; US 5080065 A 19920114
DOCDB simple family (application)
EP 90119025 A 19901004; DE 69031822 T 19901004; US 59321790 A 19901004